Abstract
Much effort has been invested in examining integrated instrumentation for advanced aircraft cockpits, but little comparable effort has been directed toward the greatest number of aircraft presently flying - those in the general aviation environment. This study examined the benefits of a simple and widely available integrated instrument, the horizontal situation indicator (HSI), in the performance of simple navigation and orientation tasks by private pilots. Tested in the context of the multiple-processor Basic General Aviation Research Simulator (BGARS), pilots exhibited significantly fewer navigational reversals and orientational errors when using the HSI (in comparison with their performances when using the traditional VOR and Directional Gyro combination). These results were consistent with but even more definitive than an earlier sample of instructor pilots. Similar benefits in procedural error reduction were also found when instrument index markers, or “bugs,” were used as short-term memory aids.
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